患者系男性,4岁,因左侧斜疝于1989年11月20日住院。体检:左侧腹股沟和左阴囊可见约6×5×3cm肿物,质软,无触痛,透光试验(-)。该肿物向上挤压时大部分可纳入腹腔,但腹股沟管内尚有部分遗留。术前诊断:左腹股沟斜疝。入院后第4d行疝修补术,打开疝囊后,发现疝囊后壁距内环约2cm Male, 4 years old, was hospitalized on November 20, 1989, due to a left hernia. Physical examination: left groin and left scrotal visible about 6 × 5 × 3cm tumor, soft, no tenderness, light transmission test (-). Most of the mass can be squeezed into the abdominal cavity up, but there is still part of the inguinal canal left behind. Preoperative diagnosis: left inguinal hernia. 4d after admission hernia repair, open the hernia sac and found that the posterior wall of the hernia sac from the inner ring about 2cm